{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:67W4ETZVTN3A63MEUNKZQD4II6","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"16c65e1f85746b6a1c3f9006da455a8001b412ea57e941d4fb86625ada4ec25b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2011-08-03T18:08:22Z","title_canon_sha256":"4a0e86867ac93a9656e0b71caa6527e2a4bc25fb1561d46e2f107b0d1cd58e03"},"schema_version":"1.0","source":{"id":"1108.0907","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1108.0907","created_at":"2026-05-18T04:16:21Z"},{"alias_kind":"arxiv_version","alias_value":"1108.0907v1","created_at":"2026-05-18T04:16:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1108.0907","created_at":"2026-05-18T04:16:21Z"},{"alias_kind":"pith_short_12","alias_value":"67W4ETZVTN3A","created_at":"2026-05-18T12:26:22Z"},{"alias_kind":"pith_short_16","alias_value":"67W4ETZVTN3A63ME","created_at":"2026-05-18T12:26:22Z"},{"alias_kind":"pith_short_8","alias_value":"67W4ETZV","created_at":"2026-05-18T12:26:22Z"}],"graph_snapshots":[{"event_id":"sha256:d1004c7df30b4dfd786130aaf69a00ac7e36eb788e253a2231076c7452e00e84","target":"graph","created_at":"2026-05-18T04:16:21Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"Over the course of the cryogenic mission of the Spitzer Space Telescope, the responsivity of the Red Peak-Up sub-array on the Infrared Spectograph (IRS) varied by ~2%, based on an analysis of five standard stars. The sensitivity dropped 1.7% after the first 14 IRS campaigns, then climbed back up 1.0% later in the mission. The uncertainty in these measurements is better than ~0.3%. The random variations in the Peak-Up photometry of the standard stars has a gaussian distribution of width ~2%, similar to the magnitude of the systematic temporal variations.","authors_text":"D.A. Ludovici, G.C. Sloan","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2011-08-03T18:08:22Z","title":"IRS-TR 11001: Temporal Responsivity Variations on the Red Peak-Up Sub-Array"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1108.0907","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:b8927ce848ffbfd74d6249cf212639d0f17e713a9408f1c3dfc732d8264b35ad","target":"record","created_at":"2026-05-18T04:16:21Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"16c65e1f85746b6a1c3f9006da455a8001b412ea57e941d4fb86625ada4ec25b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2011-08-03T18:08:22Z","title_canon_sha256":"4a0e86867ac93a9656e0b71caa6527e2a4bc25fb1561d46e2f107b0d1cd58e03"},"schema_version":"1.0","source":{"id":"1108.0907","kind":"arxiv","version":1}},"canonical_sha256":"f7edc24f359b760f6d84a355980f884793c2207a5feb7950151b8a6a6d56fbd9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f7edc24f359b760f6d84a355980f884793c2207a5feb7950151b8a6a6d56fbd9","first_computed_at":"2026-05-18T04:16:21.815968Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:16:21.815968Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"rj0BWo5RW7LcZfWaHtKisTXRXjkWaWiuvDmzqxBa0FKXgtJCyka4dysoeLgEDNz6GEJ0XF3Y9RX495CLbnHvCw==","signature_status":"signed_v1","signed_at":"2026-05-18T04:16:21.816429Z","signed_message":"canonical_sha256_bytes"},"source_id":"1108.0907","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b8927ce848ffbfd74d6249cf212639d0f17e713a9408f1c3dfc732d8264b35ad","sha256:d1004c7df30b4dfd786130aaf69a00ac7e36eb788e253a2231076c7452e00e84"],"state_sha256":"643fdc231152b6286d7f4b7b9352821de586887b4bba184820d03cd1b083a22c"}